i liked crysis 1 because of the freedom it gave you in gameplay, (atleast for parts of the game), having large fully explorable, interactive worlds... not to mention long drawdistances where pretty much everything could be seen at any distance (with LOD)
... i dont like crysis 2, the NS2 feels like a cheap knockoff, the gameplay is linear to the max, iirc im playing on hard, and well, for what i've played, you just litteraly walk from A to B, fight a few waves of aliens, with a big trianglehead attacking you, and you dont really have much gameplay to play around with, cloak around and kill the little things, duckandcover and shoot RPG's at the big thing, just to do it all again 5 minutes later.
then in crysis 2, graphicly its better and worse. sure *now* it has dx11, and highres textures, but the DX11 tessalation is a bit odd, looking at it in wireframe, its stuipidly high in someplaces, yet non-existant in others, and i hear people say that alot of the tesssalation is under polys and cant be seen.
also, the drawdistance/lod is terrible, console popup.
however, ass kicking in games is allways good.
(and while DNF i dont think had ass kicking, it was a pretty good game despite the xbox reviews, felt rather oldschool and about 9001x better than crysis 2 in pretty much every way.